Good Fish Guide

Cockle

(Cerastoderma edule)

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Some sources of this species are more sustainable than others. View ratings.

Overview

The common cockle is a bivalve mollusc found buried in mud and sand in estuaries and on beaches. Cockles have distinctive rounded shells that are slightly heart shaped. It is a bivalve (two identical shells) belonging to the family Cardidae meaning heart-shaped. An organ called a siphon allows the animal to feed and breathe whilst buried in the sand. They can jump by bending and straightening the foot - the end bit- which is often coloured red and called the red nosea. The shell size is up to 5cm long, although average sizes tend to be around 3-4cm. Maturity occurs at a shell length of around 2cm. Cockles spawn from March to August, although exact times will vary from region to region.

Ratings

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Rated 1-2
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OK - Needs Improvement

Rated 3-4
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Avoid

Rated 5
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Under review

Ratings that are Under Review
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Wild-caught

Location: Certified fleets only

Method: Dredge (suction)

Certification: Marine Stewardship Council (MSC)

More info
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Wild-caught

Location: Certified fleets only

Method: Dredge (suction)

Certification: Marine Stewardship Council (MSC)

More info
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Wild-caught

Location: Kent & Essex IFCA district (outside the TECFO area)

Method: Dredge (suction)

More info
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Wild-caught

Location: Eastern IFCA District (0-6nm)

Method: Hand-gathering (shore)

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Wild-caught

Location: Certified fleets only

Method: Hand-gathering (shore)

Certification: Marine Stewardship Council (MSC)

More info
Also known as

Cockle

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